Home / 13,625.83-20,440.08-5,306.53

Finding the Fourth Proportional to 13,625.83, 20,440.08 and 5,306.53

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Solution

The fourth proportional to 13,625.83, 20,440.08 and 5,306.53 is: 7,960.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,625.83 : 20,440.08 = 5,306.53 : x
  2. Step 2: Convert to fraction form
    13,625.83/20,440.08 = 5,306.53/x
  3. Step 3: Cross multiply
    13,625.83x = 20,440.08 × 5,306.53
  4. Step 4: Simplify right side
    13,625.83x = 108,465,897.72
  5. Step 5: Solve for x
    x = 108,465,897.72/13,625.83
  6. Step 6: Final answer
    x = 7,960.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.